Compressing machine having two pivoted dies closed by reciprocating mount for third die



Feb. 13, 1951 P. A. RAHAIM 2,541,544-

COMPRESSING MACHINE HAVING TWO PIVOTED DIES CLOSED BY RECIPROCATINGMOUNT FOR THIRD DIE Filed July 19, 1946 5 Sheets-Sheet l INVENTOR.

R127 J. a 272 Feb. 13, 1951 P. A. RAHAIM COMPRESSING MACHINE HAVING TWOPIVOTED DIES CLOSED BY RECIPROCATING MOUNT FOR THIRD DIE SSheets-Sheet 2Fi ledJuly 19, 1946 Feb. 13, 1951 P. A. RAHAlM 2,541,

COMPRESSING MACHINE HAVING TWO PIVOTED DIES CLOSED BY RECIPROCATINGMOUNT FOR THIRD DIE Filed July 19, 1946 3 SheetsSheet 5 I N VEN TOR.

Patented Feb. 13, 1951 COMPRESSING MACHINE HAVING TWO PIV- OTED DIESCLOSED BY RECIPROCATING MOUNT FOR THIRD DIE Peter Rahain'n'; Gardner,Mass., assignor, by mesne assignments, to Valiton-Richardson, Inc.,Sheboygan Falls, Wis., a corporation of Wisconsin Application July 19,1946, Serial No. 684,833

1 Claim. 1

This invention relates to compressing machines for compressing wood,metal, plastics, or any similar material in a simple, quick, easy andefficient manner.

Objects of the invention include the provision of a compressing machinecomprising a pair of dies having outlines conforming to the article tobe compressed in combination with an additional die for cooperationtherewith, the first two dies acting to compress the article indiametrical D- posite directions and in combination with the third dieto compress the article in diametrical opposite directions at rightangles to the first named compression.

Further objects of the invention reside in the provision of a machine asabove stated including a single operator member for actuating theplurality of dies above defined in the manner stated; and the provisionof a compressing machine of the class described including power meansfor actuating the dies to accomplish the compression in combination witha switch located between the dies in a manner so that when the articleis inserted between the dies it will trip the switch so as to actuatethe power means to carry out the compressing function automatically.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings in which Fig. 1 is aplan view of the machine showing the dies open,

Fig. 2 is a similar view showing the dies closed in the compressingrelation, and

Fig. 3 is an enlarged section through the dies showing the start andstop switch diagrammatically.

For purposes of illustration the present machine is illustrated ashaving dies for compressing a wooden or the like tenon but it is to beunderstood that the compressing action may be used for any othermaterial desired. The word tenon as used herein refers to tenons,dowels, pins, etc., of any material.

The machine is provided with a base it having one or more powercylinders I2 thereon arranged in parallel relation, each cylinder havinga piston rod l4 which is adjustable by means of a nut l6 for varying therange of movement thereof. Each piston rod M is secured to an op- 2erator l8 and it is to be noted that in Fig. 1, the piston is retractedso that operator I8 is inactive whereas in Fig. 2 the piston rod isadvanced to accomplish the compressing function.

A pair of dies 20 are pivotedly mounted on bushings 22 so as to beenabled to pivot from the position of Fig. 1 to the position of Fig. 2,against the action of dashpot springs 24 acting on pins 26, the latterfinding a reaction point on a wall 28 in a recess in the bed of themachine. Each die is provided with a lateral wall 32 which turnsinwardly as at 38 to provide an adjacent wall at an angle thereto, thesewalls being engaged by rollers 34 on the operator l8; and as the latteradvances, it will be obvious that the dies 20 are pivoted toward eachother from the Fig. 1 to the Fig. 2 position.

Each die is provided with a removable insert 36 having an operatingsurface 38 made to the shape desired for the compressed article and itis to be noted that as the dies 20 pivot toward each other the inserts36 move in a similar manner and come to the position shown in Fig. 2,this position defining a circle if desired. lhe compressing surface 38may be provided with projections 40 to form indentations in the articlebeing compressed.

The operator I8 is provided with a die 42 which moves therewith in thedirection of the arrows, but it is tobe noted that the dies 2%; reachthe Fig. 2 position just prior to the impact of the die 42 so that thecompression is accomplished first at diametrical opposite points priorto the finishing compression at diametrical points arranged at to thefirst mentioned diameter.

The cavity formed by the die is provided with a push-button switch 44which is arranged to actuat a mechanism such as a solenoid S toaccomplish the operation of the power cylinders 12. This switch isspring-pressed upwardly by a spring 46 and makes a contact at is, thiscontact being connected to the solenoid to operate the latter through asource of electric current for opening and closing a valve V to thepower cy1-' swinging compressing dies, an operating element therefor, apair of extending arms on the operating element, said arms being spacedsufficiently to engage the open dies and swing the same together toclosed position upon advancing movement of the element, means to advanceand retract the element, each die having a cam surface engaged by thearms to swing the dies and having an adjacent, straight surface in lineWith the direction of motion of the element so that the latter advancesafter the dies are closed, and a die on the element.

PETER A. RAHAIM.

REFERENCES CITED The following references are of record in the file ofthis patent:

Number Number 4 UNITED STATES PATENTS Name Date Scheid May 4, 1909Barker Sept. 4, 1923 Neal Aug. 26, 1924 Fisher July 21, 1925 Van derWerff Oct. 11, 1927 Martel June 28, 1932 Svenson Dec. 26, 1933 FridenOct. 30, 1934: Lancaster Aug. 26, 1941 Schoenky Sept. 30, 1941 TempleJune 1, 1943 FOREIGN PATENTS Country Date Germany Dec. 27, 1934Australia June 11, 1942

